Reflector cut-off for headlights.



0.! MI REFLECTOR CUT-OFF FOR HEADLIGHTS.

APPLICATION FILED APILZZ. 1918- I Patented Dec. 31, 1918.

OTHO M. OTTE, OF JAMESTO WN, NEW YORK.

REFLECTOR CUT-OFF FOR HEADLIGHTS.

a ,asaaee.

Specification of Letters Patent.

Patented Dec. 31, 1918.

Application filed April 22, 1918. Serial no. 229,892.

following, taken in connection with the accompanying drawings, is aspecification.

The invention relates to automobile headlights and means for controllingthe light from the same; and the improvement consists in providing amechanical reflector cutoff for the upper portion of the parabolicreflector so that the reflection of the light is limited to apredetermined height, the cutofl being so arranged that the upwardlydirected light rays are reflected back throu h the source of light tothe lower portion of t e parabolic reflector so that the major portionof the light rays from the source of li ht are reflected upon theroadway as desir and the invention consists in the novel features andcombinations hereinafter set forth and claimed.

' In the drawings, Fi re 1 is a vertical sectional view of the hea lightor lamp showing the construction and arrangement of the parts, thecontrol of the light rays being shown by dotted line. Fig. 2 is a detailfront perspective view of the reflector cut-ofl removed from the lamp;and Fig. 3 is a perspective view of the under and inner sides of thereflector cut-ofl" showing the construction and arrangement of the same.

Like characters of reference refer to corresponding parts in the severalviews.

The numeral 10 designates a parabolic reflector lamp for automobileswhich is constructed with substantially parabolic shaped outer casing11. The casing 11 is arranged in spaced relation to the parabolic shapedreflector 12, a light post 13 being connected to the center of thereflector 12. The re-' flector 12 is supported by the outwardly turnedflange 14 around the outer rim of the reflector 12 which flange 14braces against the inner wall of the casing 11 thereby holding the outerrim of the parabolic reflector 12 and the casing 11 firmly in theattached position.

. A glass 15 is provided to cover the front of the reflector 12, whichglass is'held in lace by the inclosing rim 16. The rim 16 is attached tothe casing 11 by spaced screws 17 around the periphery of the casing. A

groove 18 is provided in the outwardly turned flange rim 14 to receivetherein a packing 19 against which the supportin rim 20 of the reflectorcutofl' 21 rests and t ereby prevents all rattling as well as inclosingthe interior of the reflector. The rim 20 also has a groove 22 withpacking 23 therein which extends around the semi-circular rim 20 of thereflector cut-ofl 21, the glass 15 resting firmly against the packing 23for the upper half of the reflector and against the packing 19 for thelower half, all the parts being held in their proper relation to oneanother by means of the inclosing rim 16.

The reflector cut-ofl 21 conslsts of the semi-circular rim 20 which issu ported within the reflector 12 as hereinbe ore described by means ofthe inclosing rim 16 pressing the packings 19 and 23 thereagainst. Aparabolic or semi-circular shaped cut-off plate 24 for the upper portionof the parabolic reflector is attached to the lower ends 25 of the rim20 preferably by means of the angle brackets 26 and screws 27 andextends into the parabolic reflector. The front edge 28 of the reflectorcut-ofl plate 24 is turned downwardly with a central-projection 29 towhich the semi-circular name and screen plate 30 is attached. Thecut-ofl plate 24 is shaped to fit within the reflector 12 immediatelyabove the light 33 and light ost 13, inclining downward slightly towathe front of the reflector. A semi-circular bulbous shaped upwardprojection 32 is provided in the reflector cut-0d 21 which fitsimmediately over thelamp bulb 31, the shape of the inner side of thebulbous portion 32 being so designed as to reflect the light rays backto the source of light 33 and through said source of light to the lowerportion of the parabolic reflector 12 by which it is reflected inparallel alinement upon the roadway. e entire under'surface of thereflector cut-ofi plate 24 is polished or coat- 0 which reflectorcut-01f utilizes a large portion of I ferent designs of parabolicreflector automobile headlights.

I claim as new 1. A reflector cut-ofl' for electric headlights and thelike, composed of an a proximately horizontal plate of substantial ysemicircular shape having an upwardly extending bulb-like part toreceive the upper portion of the electric bulb, a substantiallysemi-circular rim secured to the upper half of the headlight reflectorat the front of the latter, said rim having a semi-circular flangeextending rearwardly thereof, angle-brackets having one arm secured tothe flange at the ends thereof, and means to secure said plate to theother arms of the angle brackets, said plate having a central shielddepending from the center thereof.

2. A reflector cut-off for electric headlights and the like, composed ofan approximately horizontal plate of substantially semicircular shapehaving an upwardly extending bulb-like part to receive the upper portionof the electric bulb, a substantially semi-circular rim secured to theupper half of the headlight reflector at the front of the latter, andmeans to secure the plate to the ends of said rim.

3. A reflector cut-ofi' for headlights and the like composed of asubstantially semicircular ring-like member having a part clampedbetween the headlight glass and the reflectorat the top portions of thesame,

. said member also having a part extending into the reflector andengaging the latter to the top and adjacent side parts of the reflector,said member having front and rear depressed parts, packin in each of thedepressed parts, the pac 'ng at the front being engaged with theheadlight lass and the packing at the rear with the re ector, means tosecure the headlight glass in place so as to clamp the member inposition, a plate overlying the light, and means to secure the plate tothe ends of the member.

5. A reflector cut-off for headlights and the like, composed of asubstantially semicircular rin -like member, said member having a partormed to engage the upper half of the headlight and to be held inclamped position thereon by the headlight glass, a substantiallyhorizontal cut-off plate formed to engage over the source of light, andmeans to rigidly secure said plate to the ends of said memberso as tohold said ends spread apart and against movement toward each other.

In testimony whereof I have aflixed my signature in the presence of twowitnesses. OTHO M. OTTE. Witnesses:

H= A. SANDBERG, I. E. NORDSTROM.

